Coal-conveyer



(No Model.)

3 Sheets-Sheet 1.

T. H. LEWIS.

GOAL GONVEYER.

wl'lihinlm:

WIT 5555 rn: non |s News co mum PatenteQrOot. 6, 1891.

,By his .H-Hy

1mm., msnmcrou n c (No Model.) 3 Sheets-Sheet 2.

T. H. LEWIS.

GOAL GONVBYER.

No, 460,643. T Patented Oct. 6,1891.

3 Sheets-Sheet 3.

Patented Oct. 6, 1891.

T. H. LEWIS. GOAL ooN-VEYBR.

(No ModeL) NME-FITUR El d Wl Tp] 555525 UNITED STATES PATENT OEEIcE.

THEODORE H. LEVIS, OF BOSTON, MASSACHUSETTS.

COAL-CONVEYER.

SPECIFICATION forming part of Letters Patent N o. 460,643, dated October 6, 1891.

Application filed May 16, 1891. Serial No. 392,998. (No model.)

To all whom it may concern,.-

Be it known that I, TIIEoDoRE H. LEWIS,

of Boston, in the county of Suffolk and State the coal is lifted and removed from the vessel to the shore by means of buckets moved by endless chains. It is found in practice that the coal-conveyors now in use dig or burrow in the coal in one spot in the hold on a line with the hatchway, but leave large masses of coal untouched at the sides or Wings.

The principal object of my improvement is to provide a conveyer which will take the coal from all parts of the hold, even next the sides, instead of merely digging a hole in a single spot. I accomplish this object by means of the improved apparatus below described, in which I show three conveyers, one, the main conveyer, being jointed and the other two auxiliary conveyers being pivotally and otherwise adjustable, all as below described,.and illustrated in the accompanying drawings,in whichn Figure 1 is a side elevation of my machine `or apparatus, the hold of the vessel being shown in vertical section. Fig. 2 is a front elevation ot the same, a small portion being broken out to show the pivotal construction of the frame of the auxiliary conveyers. Fig. 3 is a section taken on line x, Fig. 4. Fig. 4 is a vertical section on line y, Fig. 3. Fig. 5 is a horizontal section on line a, Fig. 4. Fig. 6 is a horizontal section on line w, Fig. 4.

Similar letters of reference indicate corresponding parts.

A represents the hold of a vessel which is being unloaded, and a is the coal lying in the hold and being conveyed to a suitable receptacle on shore.

B represents a wharf or landing.

C is the frame-Work for supporting the apparatus, constructed in any suitable manner and resting on the wharf B.

D D' are the two portions of the jointed frame of the main or central conveyer. The upper portion D is pivotally connected With the-lower portion D' by the pivot or bolt e, (see Figs. 3, 4, and 5,) the two parts being kept in line and suiiiciently rigid by means of the extensions or tongues D' at the lower end of the portion D and the grooves or bifurcations D" at the upper end of the portion D'. Suitable nuts b ZJ keep the parts in position, but allow them to swing freely relatively on thebolt e. Each of the sides constitutingtheportionsD D of this conveyer is made With two inwardly-extending longitudinal flanges dcZ', Fig..6,formed at right angles with the sides. The upper (outer) surface of the liange CZ and the upper (inner) surface of the flange d' constitute tracks for the rollers or wheels E on the shafts E. These shafts have their bearings in and are connected by links, which form the endless chains F, said chains being actuated by ordinary sprocket-wheels (broken lines E, Fig. l) within the conveyer at the upper end, fast ou the shaft f, supported by the frame, and which has rigid With it a pulleyf', Fig. 2, actuated by the belt f', which communicates with the power. Swinging freely on the shafts E are the buckets II, constructed substantially as usual.

It will readily be seen that by means of this jointed conveyer, which can be swung back and forth in the hold, a greater quantity of coal can be reached than by a rigid conveyer, which can only reach a single point.

In order that the coal at the extreme sides or wings of the hold may be reached, I provide an auxiliary pair of conveyors, as fol.- lows: These conveyers consist, essentially, ot the frames I I', the endless chains .I J', provided with the rollers K K', which roll on the edges of the frames, and the buckets L L', carried by the spindles Z Z' of the rollers. Near the upper ends of the frames are the shafts g g', which are actuated, as usual, by ordinary sprocket-Wheels. (See broken lines 7L h', Fig. 2.) The shafts g g' are supported by the hangers m and brace-rods n, secured to said hangers, and the hangers are secured at their upper ends to a cross-piece o, which, with the hangers, constitutes a frame. This frame is suspended from the vertical bolt L, Fig. 2, and is free to rotate horizontally thereon, and the bolt has an eye or hook L', which catches over the horizontal pin M, which is supported in the hanger or vertical bar N,

IOO

whose upper end is loosely hung by means of a strap N' on a rod N, (see Fig. l and broken lines in Fig. 2) supported by the frame P. The rear end of this frame is hinged at 5 P" to the main frame C, and its forward end is supported by the rope or chain R, which passes over a pulley o in the upper end of the frame C and thence down to a drum t, provided with an ordinary ratchet t' and crank t". By operating the crank t" the frame P is swung up and down, the hanger N preserving a Vertical position. Thus by grasping the handles u the conveyers may be swung by means of the strap N' or turned by means of the pivot L or spread apart, as desired. The shafts g g', on which are fixed the sprocketwheels which operate the endless chains J J', carrying the buckets K K', are actuated by the gear-wheels S S', which are fast on said shafts g g'. The gear-wheel S isu engaged by the gear-wheel S', and on the saine shaft g' is fixed a pulley S", connected by a band T with the pulley U, fast on the shaft P', supported by the swinging frame P. Fast on this same shaft is the pulley U', Fig. 2, which is connected by the band T' with a pulley on the shaft WV, supported by the main traine. A

pulley T" on the shaft WV is connected by a band U" with a pulley on the shaft TVQ and the pulley Y on said shaft XV is connected by a band V with the power. Thus it will be seen that by communicating motion to the bands j" and V the buckets ol' all the con- Veyers are set in motion, and while the inain conveyor may be swung back and forth by means of its joint the auxiliary conveyers may be rotated, swung, and spread apart, so that all portions of the hold can be reached by the conveyers.

The coal raised by the auxiliary conveyers is dropped into the buckets of the main conveyer, and the coal in the buckets of the main conyeyer is dropped into a chute or inclined flume C', supported by the frame in any desired manner.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

In a coal-conveying apparatus, the combination of a jointed conveyer supported by the main portion of the frame, a pair of adjustable auxiliary conveyers arranged to be rotated, swung, and spread apart at their lower ends, and a frame hinged to the main fralne for supporting said auxiliary conveyers, substantially as set forth.

THEODORE H. LEXVIS.

Witnesses:

HENRY W. WILLIAMS, J. M. HARTNETT. 

